On-Demand Entanglement of Molecules in a Reconfigurable Optical Tweezer Array

• URL: http://arxiv.org/abs/2210.06309v1
• Date: Wed, 12 Oct 2022 15:23:04 GMT
• Title: On-Demand Entanglement of Molecules in a Reconfigurable Optical Tweezer Array
• Authors: Connor M. Holland, Yukai Lu, Lawrence W. Cheuk
• Abstract summary: Entanglement is crucial to many quantum applications including quantum information processing, simulation of quantum many-body systems, and quantum-enhanced sensing. Here we demonstrate, for the first time, on-demand entanglement of individually controlled molecules. We realize an entangling two-qubit gate, and use it to deterministically create Bell pairs.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Entanglement is crucial to many quantum applications including quantum information processing, simulation of quantum many-body systems, and quantum-enhanced sensing. Molecules, because of their rich internal structure and interactions, have been proposed as a promising platform for quantum science. Deterministic entanglement of individually controlled molecules has nevertheless been a long-standing experimental challenge. Here we demonstrate, for the first time, on-demand entanglement of individually prepared molecules. Using the electric dipolar interaction between pairs of molecules prepared using a reconfigurable optical tweezer array, we realize an entangling two-qubit gate, and use it to deterministically create Bell pairs. Our results demonstrate the key building blocks needed for quantum information processing, simulation of quantum spin models, and quantum-enhanced sensing. They also open up new possibilities such as using trapped molecules for quantum-enhanced fundamental physics tests and exploring collisions and chemical reactions with entangled matter.

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